Weekly local walks, 60 members
Free Events tier. Saturday morning easy walk capped at 30 (no permit). Wednesday evening sunset hike capped at 20. Difficulty in each description. Free.
Built for hiking group leaders + outdoor club organizers
Hike RSVPs, capacity caps and reminders — without the spreadsheet
Free RSVPs for weekly walks. Strict capacity caps with an auto-promoting waitlist for permit-limited trails. A phone number on every RSVP. Multi-day trip deposits through Stripe. No app for your hikers.
Freefor community walks
Autowaitlist promotion
2.7%on paid trips
What hiking group leaders actually need to manage safely
Hiking-group admin is fundamentally different from a yoga class or a book club. You need to know everyone's fitness level, what gear they're bringing, and who their emergency contact is — before they show up at the trailhead. For multi-day trips you need waivers, deposits, and dietary information. For ranger-permitted trails, you need accurate headcount.
Who's In handles the RSVP side in one signup flow. Put the difficulty, distance and kit list in each hike's description so people self-select, and require a phone number on every RSVP. Add a required RSVP question for an emergency contact, and every hiker answers it when they RSVP; Who's In has no waivers, so collect those with your own form. Multi-day trip deposits through Stripe. Auto-promoting waitlist for permit-capped trails. Cancel a hike and everyone who RSVP'd is emailed.
It's free for day hikes and community walks. Studio plan ($15.83/mo annual) adds class packs (e.g., 8-hike intro pass) and member portals when your group grows.
Sound familiar?
You're not alone. These are the challenges we hear every day.
Phone numbers scattered across group chats
Someone's late at the trailhead and you can't reach them, because their number is buried in a group chat from last spring. If something goes wrong on the hill, that's a real problem.
No number to call when it matters
Fitness level mismatches lead to bad days
Beginner shows up for an intermediate hike thinking they can handle it. By mile 4 they're exhausted, and the whole group has to wait. Without the difficulty spelled out before people sign up, this happens every other trip.
The whole group waits
Permit-capped trails are unforgiving
Some national parks cap groups at 12. You said yes to 16 because "people always drop". Now you're 4 over the permit, the ranger asks, you reorganize at the trailhead. Bad start to the day.
Over the permit before you start
Multi-day trips need deposits + Eventbrite isn't built for it
Backpacking trip in 3 months. $400 deposit. Eventbrite takes a hefty cut. So you end up with PayPal + email + a Google Doc.
Deposits, emails and docs in different places
Features that match how hiking groups actually run trips
A phone number on every RSVP
Require a phone number when hikers sign up, so you can reach anyone on the day. It's in the CSV export with names and emails for your trip records.
Difficulty and kit in every hike description
Spell out distance, elevation gain and the kit list on each hike, and switch on dietary questions for trip food. Add a required short-answer RSVP question for each hiker's emergency contact.
Per-trail capacity + waitlist
Cap your permit-restricted trail at 12 with strict waitlist. Cap your community easy walk at 30 with friend-of-member +1 allowed. Different rules per hike.
Multi-day trip deposits
Sell the deposit (e.g., $200) as the trip's ticket price, charged via Stripe at signup, and collect the balance yourself before the trip. Refund flow built in.
Weather cancellations reach everyone
Forecast turns bad. Cancel the hike and everyone who RSVP'd gets an email (plus WhatsApp for signed-in hikers who added a phone number and keep WhatsApp notifications on). Post the rain date as a new event.
Apple + Google Wallet trip pass
Hikers can add the trip to Apple or Google Wallet, with the date and meeting point to hand on the day.
Three hiking groups, three setups
Permit-capped national park hikes
Group of 12 on alpine routes. Strict capacity. Phone number required; experience level (a dropdown) and emergency contact (a short answer) asked as RSVP questions. Paid $20 ticket to cover the ranger permit.
4-day backpacking trip, $600 deposit
Studio plan or paid Events. $600 deposit ticket; balance collected directly 60 days out. Dietary questions on, kit list in the description. Cancellation policy 60-day notice. Apple Wallet trip pass.
Why hiking groups don't fit standard event tools
vs Meetup at $29.99/month (as of 2026) organizer fee. No waiver flow. No per-trail capacity caps. Members have to create Meetup accounts.
vs Eventbrite for trips
Builds for ticketed events, not waiver-required hikes. ~6% fees on multi-day trips. Custom questions are clunky.
vs Spreadsheet + PayPal + paper waivers
Works for 5 friends. Breaks at 30+ active hikers. Waivers go missing. Capacity caps drift. Deposits sit in your personal account until you remember to refund.
“I love this app! It's perfect for organising events from walking groups to theatre trips, parties to weekends away. The plus one feature is brilliant. It takes all the stress out of organising events.”
Frequently asked
Real questions from hiking group leaders.
- Can I require a waiver before someone can book?
- Not inside Who's In: events have no waiver step. Link your waiver form in the hike description and ask hikers to complete it before they join, then keep the records with your group's paperwork.
- Can I ask for emergency contact information per hike?
- Yes. Require a phone number on every RSVP and add a required short-answer question such as "Emergency contact name and number?". Only you and your co-hosts see the answers (Guests tab and CSV export), so export the list for the trip leader.
- What about permit-capped trails?
- Set a strict capacity. The waitlist auto-promotes when someone drops. Important for ranger-permitted trails where going over is a real issue. You always know your exact head count.
- Can hikers pay a deposit and the rest later?
- Yes, in two steps: sell the deposit (e.g., $200) as the trip's ticket price — Stripe charges it at signup — then collect the balance yourself before the trip. There's no built-in payment plan or balance due date. Refunds on cancellation handled per your policy.
- What if the weather forces us to cancel?
- Cancel the hike and everyone who RSVP'd gets an email (plus WhatsApp for signed-in hikers who added a phone number and keep WhatsApp notifications on). For paid trips, you issue refunds through Stripe from the event. Post the rain date as a new event and share the link.
Run your hiking group with the safety net it deserves
Free for community walks. Capacity controls, an auto-promoting waitlist and a phone number on every RSVP.
Free for community walks and day hikes
Strict capacity caps with an auto-promoting waitlist
A phone number on every RSVP
Apple + Google Wallet trip passes